EP 0494202 B1 19960403 - OVERLOAD CONDITION INDICATING FUSE
Title (en)
OVERLOAD CONDITION INDICATING FUSE
Title (de)
ÜBERLASTUNGSANZEIGEVORRICHTUNG FÜR SCHMELZSICHERUNGEN
Title (fr)
FUSIBLE A VOYANT INDICATEUR DE SURCHARGE
Publication
Application
Priority
- NL 9000139 W 19900926
- US 58780990 A 19900925
- US 41291489 A 19890926
Abstract (en)
[origin: WO9105359A1] A fuse (2) is provided which has a fuse housing with a transparent portion thereof, and a fuse element (4) extending through the housing (6) which is coated with a preferably non-hazardous temperature-responsive material (5). The temperature conditions generated at the interface between the coating (5) and the fuse element (4) cause the coating to leave the fuse element and deposit upon this transparent portion of the housing (6). The temperature-responsive coating (5) on the fuse element (4) will be transferred to the housing walls even where modest current overloads flow which do not immediately open the fuse. Different circuit overload conditions, including short circuit events, produce different visual indications or colorations on the transparent housings inside surfaces, which serves to identify the nature and degree of the overload problem existing in the circuit. Coatings, also capable of fluorescing under specific irradiation conditions, may be used.
IPC 1-7
IPC 8 full level
H01H 85/06 (2006.01); H01H 85/30 (2006.01)
CPC (source: EP US)
H01H 85/30 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
WO 9105359 A1 19910418; CA 2066436 A1 19910327; CA 2066436 C 19961105; DE 69026386 D1 19960509; DE 69026386 T2 19960814; EP 0494202 A1 19920715; EP 0494202 B1 19960403; JP 2657851 B2 19970930; JP H05500434 A 19930128; KR 927002536 A 19920904; KR 970007777 B1 19970516; US 5111177 A 19920505
DOCDB simple family (application)
NL 9000139 W 19900926; CA 2066436 A 19900926; DE 69026386 T 19900926; EP 90914244 A 19900926; JP 51333590 A 19900926; KR 920700667 A 19920323; US 58780990 A 19900925